Mixed Number Calculator
Convert and add mixed numbers.
Enter your values
ⓘ Live results
Results
- Sum
- 4 7/12
- As improper fraction
- 55/12
- As decimal
- 4.583333
- First as improper
- 11/4
- Second as improper
- 11/6
Quick answer
A mixed number combines a whole number and a proper fraction; multiply the whole by the denominator and add the numerator to convert it.
a b/c = (ac + b)/c
How to use the Mixed Number Calculator
- 1Enter the whole part, numerator and denominator of each number.
- 2Read the simplified sum.
- 3Leave the second number at zero to just convert the first.
Worked example
Using the values the calculator loads with:
Inputs
- Whole 12
- Numerator 13
- Denominator 14
- Whole 21
- Numerator 25
- Denominator 26
Results
- Sum4 7/12
- As improper fraction55/12
- As decimal4.583333
- First as improper11/4
- Second as improper11/6
Frequently asked questions
What is an improper fraction?
One where the numerator is larger than the denominator, like 11/4.
How do I subtract?
Enter the second numerator as a negative number.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.